Automatically-controlled gate.



R. M. & L. S. CAMPBELL.

AUTOMATICALLY CONTROLLED GATE.

APPLICATION FILED DEC. 1, 1915. 1,21 5,96 Patented Feb. 13, 1917.

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n. .M. & L. s. CAMPBELL. AUTOMATICALLY CONTROLLED GATE.

APPLICATION FILED DEC. l. 1915. 1,215,906.. Patented Feb.13,1917.

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R. M. & L. s CAMPBELL. AUTOMATICALLY CONTROLLED G ATE.

APPLICATION FILED DEC. 1. 1915.

Patented Feb. 13, 1917.

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ROBERT M. CAMPBELL AND LAXVRENCE S. CAIVIPBELL, LOS ANGELES, CALIFORNIA.

AUTOMATIGALLY-CONTROLLED GATE.

Application filed December 1. 1915.

To all whom it may concern:

Be it known that we, ROBERT M. CAMP- BELL and LAVRENCE S. CAi'IPnnLL, citizens of the United States and the Dominion of Canada, respectively, residing at Los Angeles, the county of Los Angeles and State of California, have invented new and useful Improvements in hutomatically- Controlled Gates, of which the following is a specification.

This invention relates to an automatically controlled gate, and pertains especially to gates of the turnstile type.

This i vention is especially adapted to gates controlling the entrance of persons to an auditorium such as a theater, and it is an object of this invention to provide a mechanism in cooperation with an admission accumulator, whereby the operation of the accumulator will first unlock the gate to permit the entrance of any selected number of persons; and second, will automatically lock the gate after entrance of that number.

A further object is to provide a gate construction which may be opened from within in such av manner that there will be no obstruction in the passageway it controls, the gate being merely opened by a push from within. This latter feature is vz'iluahle to permit the exit of persons at the time 01 a lire or panic.

lVe accomplish the above objects by means of the embodiment of our invention illus trated in the accompanying drawing, in which:

l igure 1 is an elevation oi our improved g. 2 is a plan view.

if 3 18 an enlarged vertical. section as seen on the line 8 3 of Fig. 2.

F 1g. 4 18 a horizontal section as seen on the line 4-4.- of Fig. 3.

F1g. 5 1s a plan View of a detail.

r 1g. 6 IS a section as seen on the line G6 of Fig. with parts in plan view.

Fi 7 is a plan now of the trailer detail. Fig. 8 is a develo nnout in elevation of he trailer det shown in Fig. 7.

Fig. l) is av fragmentary development showing the trailers 1n another position.

F1 10 is an enlar ed elevation ot a mocw 1 tor control switch.

Specification of Letters Patent.

Patented Feb. 13, 1917.

Serial No. 64,450.

Fig. 11 is an elevation of the gate control mecl'ianism.

Fig. 12 is a section as seen on the line 12-1201 Fig. 11.

Fig. 13 is a. fragmentary section as seen on the line 13-13 of Fig. 11.

Fig. 1 1; is a wiring diagram of the electric connections of the system.

Referring more particularly to Figs. 1 and 2, a pillar or post 1 1 of suitable construction and material, such as polished brass, is disposed vertically at one side of. the entrance of the auditorium, and suitably secured to the floor by foot member Mounted upon the post l l for pivotal movement is a turnstile supporting arm 16 which carries at one end the turnstile mechanism indicated generally by 17. A reduced extension of the post lef is indicated by 18 and may be carried to the ceiling, and across member 19 carried to the opposite side of the entrance. The post 18 and cross member 19 may be hollow and contain mechanism to 01 erate other rails when the arm 16 is swung outward away from the entrance in the direction indicated by the arrow -(r in Fig. 2. Gate rails 20 and 21 are disposed upon the top of the turnstile mechanism 17 and are for the purpose of keeping the entrants within the bounds of a certain passageway.

Th arm 16 is provided at its free end with a. housing section 22 having a boss 2;} provided with a recess L'Zl; to form a toot bearing tor a shaft Elliott 25 normally stationary. Keyed to the upper end of the shaft is a disl; 2%). Disk 26 has a portion cut away as more particularly shown in Fig. l. Rotatably mounted upon shat't is a sleeve '27 which has iizzedly'secured to it a circular plate 28. Rotatably mounted upon sleeve 27 is a turnstile arm 29 which in the position shown is a leading arm. A second turnstile arm 30 is rotatively mounted on sleeve 27 and in the position shown is a. billowing arm. Arms 29 and St at their bearings upon sleeve i are construeted with one bearing, oil-set with re sport to the other so that arms 29 and 30 in the same plane.

disk 31 is rotatably mounted upon the eye 27 and below the bearings for arms 29 2 id 230. Disk 31 is provided with a laterally extending flange 32. A housing section 33 is provided to cooperate with the housing section 22 and has a flange which is disposed to overlap the cylindrical wall ofv 1 housing section 22.

At the center of the housing section 33 is a boss 34 having an aperture through which extends the sleeve 27 and to which the latter keyed as indicated at 35. A thrust bearing 36 is mounted in the boss and supports the disk 31 and the arms 29 and 30.

Each arm is provided with a trailer of segmental form 29 and as more particularly shown in Figs. 7, 3 and 9. The trailers are duplicates and are provided at their noses 37 and 37 with notches 38 and '38. Eachnotch has a lower wedge wall as shown at 39 and 39 and an upper recess as indicated at i0 and 40. The tails ll and -l1 of each trailer have depending catches indicated by 4-2 and 4:2 forming shoulders and tapered parts 4-3 and 43. Later-ally tending lugs H and 44: are provided at the tips of the tails 41. and ii. The tails are reduced in thickness, as indicated at 45 and -l-5 and at the noses as indicated by M5 and 46, the mean diameter at the tail portion being less than the mean diameter at the nose port-ion .so that the nose and the tail will overlap when brought together.

A track 47 for the trailers is formed on the housing section 33 and may be integral therewith or a separate part, if desired. It forms in effect an annular cam with a raised portion as indicated at 4:7. The raised portion extends substantially half way around the entire track and has a notch 49 at its center which corresponds in form to the catches 4-2 and 42 on the tails of the trailers.

Ratchet teeth 50 are formed on one portion of the track and are adapted to be engaged by either pawl 51 or 52, the latter being pivotally mounted on trailers 29 and 30 and preventing retrograde movement of the leading trailer. A trailer releasing arm 53 is pivotally mounted on sleeve 27. At the end of the arm 53 is an upstanding post 54, which has a tapered surface, as indicated Referring particularly to Fig. 9, assume that arm 29 and trailer 29 have reached the position shown with the catch 4-2 disposed in notch 49, thereby locking the trailer 29 and arm 29 against forward movement in the direction of arrow 0. If arm 30 is moved toward arm 29 into the position shown in Figs. 7 and 8, the inclined surface 39 at the nose 37 of trailer 30 will ride under the inclined surface 623 of the tail 4-1 of trailer 29 lifting tail l1 and the catch out of the notch 49 and hooking the lug 4%- into the notch 38 in the nose 37, thereby locking trailer 29 to trailer 30 so that if arm 29 is pushed forward it will carry arm 30 with it. In the position shown in Figs.

38 in the nose 37 of'trailer 30.

7 and 8, arms 29 and 30 are locked against movement in the direction of arrow c,

as the catch 42 is engaged with the shoulder 4-8 on the raised portion 47 of track 47. In order to release the arm it is necessary to raise the tail ell of trailer 30. This is accomplished by the post 54;. If arm 53 is moved so that post 5-i- Inoves in the direction indicated by arrow b in Fig. 8, the tapered portion will engage the depending portion 42 and raise the tail of trailer 30 above the shoulder 48 on the track clearing the latter so that the trailers and arms may be moved forward. As the trail all of trailer 29 reaches the ends of the raised portion 47 of the track 47 the catch 4l2 on trailer 30 drops into notch 4&9 locking trailer 30. In this position the tail ll of trailer 29 will slide down the raised portion 7 of the track 4.7 and release itself from notch arm 29 may be moved the remainder of the distance finally locking with arm 30 in a similar manner to that shown in Figs. 7 and 8, arm 30 becoming the leading arm, arm 29 the following arm.

The unlocking movement of arm 53 is accomplished by means of a plunger 57 operated by a solenoid 56, the plunger 57 being pivotally connected to the arm 53 and the spring 58 connecting the arm 53 to a stationary part of the casing and opposing the action of the solenoid 56.

In order to automatically move the turnstile arms after they have been started by he person passing through the turnstile, we have shown the electric motor 61 having an extended shaft 62 with afriction wheel 63 at the end thereof. Wheel 63 is disposed in contact with the flange 32 so that operation of the motor will cause a rotation of the disk 31. Rotatably mounted on each of the turns-tile arms are rollers Gel and the roller being of a diameter such that they will contact the disks 26 and 31, so that rotation of the disk 31 will'revolve the arms by rotating the rollers thereon, the latter rolling upon disk 26. The arms will cease to be moved by the motor when they reach the portion of the disk 26 which is cut away. Thus, as shown in F 4, when the arm is moved by the entrant a sufficient distance for roller 64 to come in contact with disk 26, the motor being set in operation will. move the arm 29 carrying with it the arm30 until the latter has moved one quarter of a revolution. lVhen it unlocks from arm 29, continued operation of the motor will cause the arm 29 to continue to move until it reaches the other bounding edge of the cut away portion of the disk whereupon the arm will stop, and at thi time the motor stops.

The motor is controlled by a switch, particularly shown in Figs. 6 and 10, and indicated by 66. The switch consists of a pivoted member 59 having contacts 68 and 60 electrically connected to a conductor 67 leading to one terminal of motor 61. Contacts 69 and 7 O are connected to conductors 71 and 72 respectively. Conductor 72 is connected to a live side of the main current see Fig. 1 1. [he other terminal of the motor is connected to the other side of the circuit 7 1 by conductor 7 5. Conductor 71 connects with solenoid 106 hereinafter described.

Switch 66 is operated by means of a link 66" pivotally connected to the lever 59 and connected at the ends to cranks 7 5 and 7 6 which are secured to pintles 77 and 78, having cranks 7 9 and 80 at their upper ends interposed in the path of pins which depend from the arms as indicated at 81 in Fig. Pin 81 in its movement strikes crank 79 closing switch 66, making the circuit through conductor 7 2, contacts 69, 68, conductor 67, motor 61 and conductor 7 5, and causing the motor 61 to start moving. The arm 29 continues to move until pin 81 strikes arm 80 opening the switch 66 when the motor ceases to operate. In the movement of leading arm 29 from the position shown in Fig. 1, following arm 30 is locked to it through the trailers 29 and 30 and arm 30 will be carried with arm 29 through 90 degrees whereupon it becomes unlocked, from arm 80 and locked to the track Q7. The arm 29 continues its movement until the motion of its trailer locks with the tail of the trailer on arm 30, and arm 30 becomes the leading arm and arm 29 the following. Energization of the solenoid 56 will unlock the arms and permit the entrance of another person.

Energization of the solenoid 56 is controlled by the accumulator mechanism shown in Figs. 11, 12 and 13. The accumulator mechanism may be disposed in the ticket oflice where it is operated by the cashier, or may be disposed at any other point, such as at the gate a point which is convenient when tickets for reserved seats are used and the tickets are collected at the gate by a ticket taker.

A base plate 82 vhich may be Il astencd to a wall has mounted upon it a shaft 83. Rotatably mounted upon the shaft is a sleeve 84: to which is secured an admission storing member comprising a ratchet disk. Mounted upon posts 86 and 87 is a cross bar 88 which has an aperture at its center 89 in which is disposed the upper end of the shaft 83, thereby serving as a support for the latter. A pawl 90 engages the teeth on the storing disk and disposed for advancing the latter. Paw] is held in engagement with the teeth by a spring 91 which is secured at one end to the plate 92 and at the other to the pawl. The pawl 90 is pivotally connected to a bell. crank lever 93 which is pivotally mounted upon the plate 82 as indicated at 9%. A link 95 is connected to the lever 98 and an upward movement of the link will force the pawl forward, the movement being so designed that ratchet disk 85 will be moved one tooth. Link 95 is operated by the cashier and may be connected to a registering mechanism. such as is described in an application filed herewith or even date. Storing disk 65 is provided with a post 90 as particularly shown in Fig. 12. Secured to this post is a spiral spring 97, the inner end being connected to a post 98 which is mounted upon an admission discharge mem- Jer 99 comprising an escapeinent disk.

Disk 99 is rotataliily mounted upon sleeve 9-1- and its movement is controlled by an anchor 100 which engages with the teeth thereof. lvi'ovement of storing disk 85 winds spring 97 and tends to rotate disk 99. Anchor 100 is pivotally mounted upon post 87 and has an arm 101 which contacts with a cam 102. Cam 102 is provided with an arm 103 to which is pivotally connected a rod 101. Rod 101- is connected to the phiuiger 1053 oil a solenoid 106. Cam 102 is provided with a second arm 107 which is secured by a spring 108 to the plate 82. Spring 108 tends to maintain the cam in the position shown in Fig. 11.

Energization of the solenoid 106 pulls the plunger 105 inward. moves the cam 102 by acting upon the rod 101i and arm 103, and lifts the arm 101 moving the anchor so that the discharge disk 99 may move one tooth. Upon the deenergization of solenoid 106 spring 108 acting upon arm 107 returns the cam to the position shown in full lines, the arm 101 dropping by its own weight and locking the disk 99 through the anchor 100.

Fikedly secured to the discharge disk 99 is collector 109. Collector 109 consists of a disk of electric insulating material 110 provided with a peripheral. groove 111. lvlornted at the side walls oi? the peripheral groove 111. are annular rings 112 and 113 ilormod 01 electric ('oi'iducting material. In contact with ring 112 is a spring collecting brush 1.11 and in contact with ring 113 is a spring collecting brush 115. Brushes 114iand 115 are mounted upon an insulating block 115 which is secured to the base plate 82. Iirush 11 1: is connected by a conductor 117 to one terminal of the solenoid 106. Brush 115 is connected to conductor 170 which leads to solenoid 56 which is mounted in the gate.

Referring particularly to Figs. 11 and 13. switch 118 is shown mounted upon collector disk 109 and comprises as shown in Fig. 1?) spring jaws 119 and 120. jaw 119 being connected to ring 113 and jaw 120 being rounected to ring 112. li ivotz'tlliy mounted upon disk 109 is a blade 121 whose 1113?. end is disposed to make electric contact with jaws 119 and 120. A spring 122 is secured to an car on the blade 121, and to the col- A lug 125 is mounted upon a disk 126 andabuts lugs Disk 126 is rotatably mounted upon the sleeve 84. Keyed to the upper end of sleeve 8 1 is an arm 127 which extends radially, the end thereof being disposed to contact lug 125. Lugs 123, 125 and arms 127 are so disposed that they overlap so that as arm 127 rotates in a counter clockwise direction it will engage lug 125 carrying disk 126 with it. Lug 125 will contact lug 123 carrying disk 124; with it. Lug 123 will engage the car 122 on blade 121 and pressure against ear 122 will move blade 121 into the position shown in full lines in Fig/13, thereby breaking the circuit between jaws 119 and 120.

Assume that arm 127 is in the position shown in full lines in Fig. 13. If link 95 is moved upward it will move storing disk through a distance of one tooth clockwise. The pawl 128 prevents retraction of the disk 85, spring 129 holding ratchet 128 in engagement with the disk. In the movement of the disk 85 in the clock-wisc direction, spring 97 is placed under tension. As discharge disk 99 is held by the anchor 100 it maintains the post 98 to which the spring 97 is connected in a fixed position. Movement of the disk 85 moves sleeve 81 and arm 127 out of contact with lug 125, so that spring 122 will pull the blade 121 into engagement with the aws 119 and 120, thereby closing the circuit. Since disks 12st and 126 are free to rotate upon the sleeve 8% they may be pushed forward by movement of the blade 121 and ear 122, as the arm 127 does not hinder movement of the disks. The circuit is closed and will remain closed until the escapement disk 99 is permitted to rotate in a clockwise direction. The spring 97 tends to rotate the escapement disk but is prevented from doing so by the anchor 100. If the anchor is moved, which may be accomplished by energizing the solenoid 106, the escapement wheel will be permitted to move one tooth. Movement of the escapement disk 99 in a clock-wise direction carries with it the blade 121. Ear 122 engages lug 123, which in turn engages lug 125 and arm 127, thereby moving the blade 121 inward into the position shown in full lines breaking the circuit between jaws 119 and 120.

If the link is moved twice to move the ratchet disk 85 through two teeth, it will be necessary to operate the anchor twice before ear 122, lugs 123 and 125 engage the arm 127. Any number of movements of the es capement wheel may be stored up, thus if the arm 127 is moved into the position shown in dotted lines in Fig. 11 the anchor would have to be oscillated sixteen times arm 127 was moved to makea complete revolution it would engage the lug 125 and carry it forward. It would then be necessary for the escapement disk 99 to make a complete revolution and carry lug 125 around to the rear of arm 127 before the circuit is broken. In the same way a second revolution of the arm 127 would bring lug 125 to the rear of lug 123 and two revolutions of the escapement wheel would be required.

As before stated, escapement wheel 99 is operated through anchor 100 whichis in turn operated by cam 102 and solenoid 106. Referring to the wiring diagram shown in Fig. l-il, switch 118 is shown as controlling the solenoid 56, which is disposed within the housing for the turnstile operating mechanism. Switch 66 disposed in the turnstile operating mechanism controls the solenoid 106 through contacts 60 and 70 and the motor 61 through contacts 68 and 69. It will be noted that solenoid 106 is so arranged in the circuit that both switches 118 and 66 must be closed in order to energizethe solenoid 106 and the closing of switch 118 alone energizes solenoid 56.

Referring particularly to Fig. 11, assume that the link 95 was operated by the cashier to move the storing disk in a clock-wise direction for one tooth. This will move the arm 127 forward and permit the spring 122 to pull blade 121 into position to make contact between jaws 119 and 120, thereby closing switch 118. Referring particularly to Figs. 6, 7 and 8, closing of switch 118 energizes solenoid 56 at the turnstile, pulls arm 7 53, lifts the tail 41 of trailer 30 on arm 30 and a person who has paid the admission fee can then enter by pushing against arm 29. The arm is pushed forward by the entering person until it engages the arm on pintle 77, moves link 66 and closes the switch 66. Closing of the switch 66 energizes solenoid 106 and sets the motor 61 in operation. The motor rotates the disk 31 at the turnstile and causes the arm 29 to move forward, unlocking from the arm 30 after it has moved one quarter of a revolution, continue forward and locks the nose of its trailers 29 into the tail 41 of trailer 30. As it reaches this point the arm on pintle 78 is moved, openingthe switch 66 and stopping the motor. The roller 64: has traveled to the cut away portion of disk 26 where it stops. Closing of the switch 66 at the beginning of the movement of arm 29 energizes the solenoid 106, moves anchor 100 and permits the escapement disk to move one notch, thereby bringing arm 127 into contact with lugs 123 and 125 engaging ear 122, moving blade 121 and opening switch 118. Switch 118 being open, solenoid 56 is de'energized and the arms 30 and 29 are locked and no one can pass through until link 95 is again moved.

If two admissions have been stored up by moving storing disk through two teeth, switch 118 will not be opened by one person passing through the turnstile as solenoid 106 would only be energized once allowing the escapement wheel to move one notch. This will not cause arm 127 to engage lugs 125, 123 and car 122; switch 118, therefore, re mains closed and another person may pass through the turnstile. Upon the second person passing through solenoid 106 is en ergized, escapement disk 99 permitted to move one more tooth and the switch 118 is opened by arm 127 engaging lugs 125 and 123 and ear 122 on blade 121, and the gate arms are locked against entrance of another.

Vie have shown an audible signal which comprises a bell 130 mounted upon base plate 82. A tapper 131 is disposed with its end arranged to engage the bell. Tapper 131 is pivotally mounted upon lever 93, as indicated at 132. The extended arm 133 of the tapper is arranged to engage spaced lugs 134 and 135 which may be integral with the lever 93. Lug 136 mounted on the plate 82 prevents the tapper from resting against the bell 131. As the link 95 is moved up- -ward and the upper arm of the bell crank '93 to the left, tapper 131 will be moved in a clock-wise direction and will strike the bell 130. As the bell crank 93 resumes its position the tapper 131 comes in contact with lugs 136 keeping the tapper out of contact with the bell. Each movement of the link 95 and the storing up of one admission in the gate control mechanism causes one tap on the bell 130.

In order to complete the mechanism within the turnstile we have provided segments of cylindrical surfaces which when spread form a complete cylindrical housing. These segments are attached to the arms 29 and 30 and ride in tracks upon a closure plate 137 secured by a screw or other suitable means to plate 26, as particularly shown in Fig. 3. These tracks are in the form of grooves and are oppositely disposed to similar grooves in the closure. member 33. The segments are four in number and are indicated by 138, 1 1 140 and 141.

To provide for the exit of persons from the theater in case of fire or panic it is necessary that the arm 16 shown particularly in Figs. 1 and 2 be moved to a position at right angles to itself as indicated by the arrow -a in Fig. 2. As the arm 16 on the turnstile is swung outward it is necessary that the rails and 21 be swung to a position such that they will not obstruct the passageway and also that arm 30 be moved to a position parallel with the open position of rails 20 and 21.

Secured to the shaft shown in Fig. 3 is a crank arm 142 and secured to the end of the crank arm is a rod 142 which is connected to a point eccentric to the axis about which arm 16 swings and is within the housing 143, so that movement of the arm 16 will cause the shaft 25 to swing. As shaft 25 is keyed to disk 26 and plate 137 is fixedly secured to disk 26, the plate 137 will be rotated as arm 16 is swung. The rails 20 and 21 are secured to the plate 137 and will, therefore, be rotated clockwise with respect to the arm 16, as the arm is swung inward. The construction is such that rails 20 and 21 will be in positions parallel to the arm 16 as the latter reaches a position at right angles to that shown in Fig. 2.

Arm must also move into position parallel to rails 20 and 21 in order to per mit arm 16 to swing fully open. Sleeve 27 is fixed to housing section 33 and carries fixedly secured to it a plate 28. Disk 26 is provided with a slot 144 through which extends a detent pin 145. Detent 145 is mount ed on an arm 146 pivotally secured to disk 26 as indicated at 147. Arm 148 is off-set from arm 146 and is engaged by a spring 149 which is secured to the disk 26 and tends to maintain the arm 146 in such a position that detent 145 is at the inner end of the slot 144. Plate 28 is provided with a notch 150 in its periphery, which normally registers with the slot 144. In normal position of the arm 16, detent 145 rests on the inner side of slot 144 and notch 150. Slots 144 and notch 150 are inclined so that as disk 26 is rotated with respectto plate 28, which occurs when the arm 1.6 is swung, the detent 145 will ride along the edge of the notch 150 and out to the periphery of plate 28 in which position the detent 145 is disposed to engage a pin on arm 30. Each arm has such a pin and the pin on arm 29 is indicated by 151. As arm 16 is swung open, pin 145 rides out of notch 150 to the periphery of plate 28 and engages the pin on arm 30. thereby carrying arm 30 along with rails 20 and 21.

A counter of the cyelometer type is indicated at 152 and indicates the number of times the gate is opened.

A. switch 168 is disposed for convenient operation by the cashier. By opening the switch the gate turnstile arms will be locked. If any person without any right to enter starts for the gate when it is unlocked for the entrance of a person, the cashier by opening switch 168 can lock the gate.

It is obvious that a person pushing upon the arm 16 from the inside will cause the independently latter to swing around to a position at right angles to that shown in Fig. 2. The rails and 21 will turn and arrange themselves parallel to the arm 16. The arm will also be moved into parallel position with the arm 16.

lVhat we claim is:

1. A gate, comprising in combination two movable turnstile arms; means automatically locking the leading and following arms during movement through a predetermined angle; and means to move the leading arm to a position as following arm after movement through said angle.

2. A gate, comprising in combination, a plurality of independently movable turnstile arms; a trailer on each arm, means on each of said trailers to automatically lock one trailer to another; a guide way for said trailers; means on said guide way to look a trailer thereto; and means for releasing said locked trailer.

3. A gate, comprising in combination two independently movable turnstile arms; a

trailer 011 each arm, means on said trailers to automatically lock a following trailer to a leading trailer; a guide way for said trailers, means on said guide way to lock a trailer thereto; said first named means and said second named means so arranged that locking of the trailers together will unlock the last mentioned trailer from the guide way, means on said guide way to lock the second trailer thereto; and means for releasing said second trailer.

4. A gate, comprising in combination two independently movable turnstile arms; a trailer on each arm, each trailer provided with a nose and a tail, said noses and tails so arranged that the nose and tail of adjacent trailers will automatically lock; a guide way for said trailers, means on said guide way to catch one trailer; a second means on said guide way to catch the second trailer, said noses and tails so arranged that locking of the nose of one trailer with the tail of the adjacent trailer will lift the latter trailer and release it from the first named means; and means for releasing said second trailer from said second means.

5. A gate, comprising in combination two independently movable turnstile arms; a trailer on each arm, each trailer provided with a nose and a tail, said noses and tails so arranged that the nose and tail of adjacent trailers will automatically lock, each tail having an inclined surface, each nose having an inclined surface to cooperate with said first named inclined surfaces for lifting the tail, each of said tails provided with a depending catch; a guide way for said trailers, a recess on said guide way for a catch on one trailer, meanson said guide way provided with a shoulder to engage the catch on the second trailer; andmeans for lifting and releasing the catch on the tail of said second trailer from said shoulder.

6. A. gate, comprising in combination two independently movable turnstile arms; a traile' on each arm, each trailer provided with a nose and a tail. each tail having an inclined surface and a locking lug, each nose having an inclined surface to cooperate with said first named inclined surface for lifting the tail, a notch in said nose forming a keeper for said locking lug, each of said tails provided with a depending catch; a guide way for said'trailers, a recess in said guideway for a catch on one trailer, means on said guide way provided with a shoulder to engage the catch on the second trailer; and a movable member provided with an inclined face arranged to engage and lift the tail of said second trailer.

7. A gate, comprising in combination a plurality of independently movable turnstile arms; a trailer on each arm, means on each of said trailers to automatically lock one trailer to another; a guide way for said trailers; means on said guide way to look a trailer thereto; means for releasing said locked trailer; mechanism for revolving said turnstile arms; a source of power for operating said mechanism: and means operated by said arms for starting and stopping said mechanism.

8. A gate, comprising in combination a plurality of independently movable turnstile arms; a trailer on each arm, means on each of said trailers to automatically lock one trailer to another; a guide way for said trailers; means on said guide way to look a trailer thereto; means for releasing said locked trailer; a friction roller on each arm; a normally stationary disk with which said rollers contact, said disk cut away so that the rollers will not contact therewith for a part of their revolution; a rotatable disk engaging said rollers to rotate the latter and 1 revolve said arms; and a source of power for operating said last named disk.

A gate, comprisingin combination a plurality of independently movable turnstile arms; a trailer on each arm, means oneach of said trailers to automatically lock one trailer to another; a guide way for said. trailers; means 011 said guide way to look a trailer thereto; means for releasing said locked trailer; a friction roller on each arm: a normally stationary disk with which said rollers contact; a rotatable disk engaging said rollers to rotate the latter and revolve said arms; a motor for operating said rotatable disk; and means operated by said arms for starting and stopping said motor.

10. The combination of a pivoted turnstile supporting arm adapted to swing horizontally; turnstile mechanism mounted thereon (Lil comprising two independently movable turnstile arms; means for locking the leading arm to bar a passageway; means to automatically position the following arm at substantially right angles to the leading arm; and mechanism arranged to move the following arm backward to a position parallel to said supporting arm upon movement of the latter.

11. The combination of a pivoted turnstile supportin arm adapted to swing horizon tally; turnstile mechanism comprising two independently movable turnstile arms, said arms provided with detent engaging means; means for locking the leading arm to bar a passageway; means to automatically position the following arm at substantially right angles to the leading arm; a pivoted member disposed adjacent said arms; means connected to said member and operated by swinging of said supporting arm; a detent mounted in said pivoted member and normally disposed out of operative engagement with said detent engaging means; means to move said detent into operative position upon move ment of said pivoted member and thereby more the following arm into a position parallel to said supporting arm upon swinging the latter at right angles to itself.

12. The combination of a pivoted turnstile supporting arm adapted to swing horizontally; turnstile mechanism mounted thereon comprising two independently movable turn stile arms, said arms provided with detent engaging means; means for locking the lead ing arm to bar a passageway; means to autonnitically position the following arm at substantially right angles to the leading arm; a shaft pivotally mounted on said supporting arm; a member fixedly secured to said shaft; a detent mounted on said member for movement into and out of operative engzjagement with said detent engaging means; means for swinging said shaft operated by swinging of said supporting arm; and a detent operating member fixedly secured to said supporting arm to more said detent into operative engagement with said detent engaging means when said supporting arm is swung.

13. The combination of a support; a turnstile supporting arm pivoted thereon adapted to swing horizontally; turnstile mechanism mounted thereon comprising two indepcmlentlv movable turnstile arms, said arms providedwith detent pins; means for locking the leading arm to bar a passageway;

means to automatically position the following arm at substantially right angles to the leading arm: a shaft pivotally mounted on said simporting arm; a. member fixedly secured to said shaft; a. detent mounted on said member for movement into and out of operative engagement with said detent pins; means secured to said post eccentric thereto and to said shaft eccentric thereto; and a detent operating member fixedly secured to said supporting arm to move said detent into operative engagement with said detent engaging pins when said supporting arm is swung.

14:. The combination of a support; a. turn stile supporting arm pivoted thereon and adapted to swing horizontally; turnstile mechanism mounted thereon comprising two independently movable turnstile arms, said arms provided with detent pins; means for locking the leading arm to bar a passageway; means to automatically position the following arm at substantially right angles to the leading arm; a shaft pivotally mounted on said supporting arm; a member fixedly secured to said shaf a detent mounted on said member for substantially radial movement; means tending to hold said detent in its inward position; a disk disposed adjacent said member and fixedly secured to said supporting arm said disk provided with an inclined notch in its periphery in which said detent is normally disposed, said disk having its periphery registering with said detent pins; and means secured to said support eccentric thereto and to said shaft eccentric thereto.

15. The combination of a support; a turnstile supporting arm pivoted thereon and adapted to swing horizontally; turnstile mechanism mounted thereon comprising two independently movable turnstile arms, said arms pu-rrvided with detent pins; means for locking the leading arm to bar a passageway; means to automatically position the following arm at substantially right angles to the leading arm; a shaft pivotally mounted on said supporting arm; a disk fixedly secured to said shaft; a detent mounted on aid disk for substai'itially radial movement; a spring tending to hold said detent in its inward position; a sleeve pivotally mounted on said shaft and fixedly secured to said supporting arm; a second disk disposed adjacent said first disk and fixedly secured to said sleeve, said second disk provided with an inclined notch in its periphery in which said detent is normally disposed; said second disk having its periphery registering with said detent pins; and a crank arm fixedly secured to said shaft; means secured to said crank arm and to said support eccentric thereto.

16. The combination of a support; a turnstile supporting arm pivoted thereon and adapted to swing horizontally; turnstile mechanism mounted thereon comprising two independently movaliile turnstile arms said arms provided with -detent pins; means for locking the leading arm to bar a passageway; means to automatically position the following arm at substantially right angles to the leading arm; a shaft pivotally mounted on said supporting arm; a disk fixedly secured to said shaft; a detent mounted on said disk for substantially radial movement; a spring tending to hold said detent in its inward position; a sleeve pivotally mounted on said shaft and fixedly secured to said supporting arm; a second disk disposed adjacent said first disk and fixedly secured to said sleeve, said second disk provided with an inclined notch in its periphery in which said detent is normally disposed, said second disk having its periphery registering with said detent pins; a crank arm fixedly secured to said shaft; means secured to said crank arm and to said support eccentric thereto; a guide rail; and means securing said guide rail to said shaft in a position normally at right angles to said supporting arm. 7

17. The combination of a support; a turnstile supporting arm pivoted thereon and adapted to swing horizontally; turnstile mechanism mounted thereon comprising two indeymmlontly movable turnstile arms; said arms provided with detent pins; means for locking the leading arm to bar a passageway; means to automatically position the following arm at substantially right angles to the leading arm; rollers on said turnstile arms; a shaft pivotally mounted on said sup porting arm; a disk fixedly secured to said shaft; said disk in contact with said rollers; a detent mounted on said disk for substantially radial movement; a spring tending to hold said detent in its inward position; a sleeve pivotally mounted on said shaft and fixedly secured to said supporting arm; a second d sk disposed adjacent said first disk and fixedly secured to said sleeve, said second-disk provided with an inclined notch in its periphery in which said detent is normally disposed, said second disk having its periphery registering with said detent pins; a crank arm fixedly secured to said shaft; means secured to said crank arm and to said support eccentric thereto; a third disk rotatably mounted on said sleeve and engaging said rollers to rotate the latter and revolve said turnstile arms; a motor for operating said third disk; and means for starting and stopping said motor operated by said turnstile arms.

18. The combination of a support; aturir stile supporting arm pivoted thereon and adapted to swing horizontally; turnstilc mechanism mounted thereon comprising two independently movable turnstile arms; said arms provided with detent pins; a trailer on each arm means on each of said trailers to automatically lock one trailer to another at substantially right angles to each other; a guide way for said trailers; means on said guide way to lock the following trailer thereto; means for releasing said locked trailer; rollers on said turnstile arms; a shaft pivotally mounted on said supporting arm; a disk fixedly secured to said shaft; said disk in contact with said rollers; a detent mounted on said disk for substantially radial movement; a spring tending to hold Said detent in its inward position; a sleeve pivotally mounted on said shaft and fixedly secured to said supporting arm; a second disk disposed adjacent said first disk and fixedly secured to said sleeve; said second disk provided with an inclined notch in its periphery in which said detent is normally disposed, said second disk having its periphery in which said detent is normally disposed, said second disk having its periphery registering with said detent pins; a crank arm fixedly secured to said shaft; means secured to said crank arm and to said support eccentric thereto; a third disk rotatably mounted 011 said sleeve and engaging said rollers to rotate the latter and revolve said turnstile arms; a motor for operating said third disk; and means for starting and stopping said motor operated by said turnstile arms.

19. The combination of a support; a turn stile supporting arm pivoted thereon and adapted to swing horizontally; tiirnstile mechanism mounted thereon comprising two independently movable turnstile arms; a trailer on each arm means on said trailers to automatically look a following trailer to a leading trailer for forward movement of the same; a guide way for said trailers, means on said guide way to lock the leading trailer thereto in a position substantially parallel to said supporting arm, said first named means and said second named means so arranged that locking of the trailers together will unlock the leading trailer from the guide way means on said guide way to lock the following trailer thereto against forward movement; means for releasing said following trailers; rollers on sa d turnstile arms; a shaft pivotally mounted on said supporting arm; a disk fixedly secured to said shaft said disk in contact with said rollers; a detent mounted on said disk for substantially radial movement; a spring tending to hold said detent in its inward position; a sleeve pivotally mounted on said shaft and fixedly secured to said supporting arm; a second disk disposed adjacent said first disk and fixedly secured to said sleeve; said second disk provided with an inclined notch in its periphery in which said detent is normally disposed, said second disk having its periphery registering with said dotent pins; a crank arm fixedly secured to said shaft; means secured to said crank arm and to said support eccentric thereto; a third disk rotatably mounted on said sleeve and engaging said rollers to rotate the latter and revolve said turnstile arms; a motor for operating said third disk; and means for starting and stopping said motor operated by said turnstile arms.

20. The combination of a support; a turnstile supporting arm pivoted thereon and adapted to swing horizontally; turnstile mechanism mounted thereon comprising two independently movable turnstile arms; a trailer on each arm, means on said trailers to automatically look a following trailer to a leading trailer forrforward movement of the same; a guide way for said trailers; means on said guide way to lock the leading trailer thereto in a position substantially parallel to said supporting arm, said first named means and said second named means so arranged that locking of the trailers together will unlock the leading trailer from the guide way, means on said guide way to lock the following trailer thereto against forward movement; means for releasing said following trailer; rollers on said turn stile arms; a shaft pivotally mounted on said supporting arm; a diskfixedly secured to said shaft, said disk in contact with said rollers, a portion of said disk in the path of said rollers cut away; a cletent mounted on said disk for substantially radial movement; a spring tending to hold said detent in its inward position; a sleeve pivotally mounted on said shaft and fixedly secured to said supporting arm; a second disk disposed adjacent the said first disk and fixedly secured to said sleeve, said second disk provided with an inclined notch in its periphery in which said detent is normally disposed, saiddisk having its periphery registering with said detent pins; a crank arm fixedly secured to said shaft; a link secured to said crank arm and to said support eccentric thereto; a third disk rotatably mounted on said sleev e and engaging said rollers to rotate the latter and revolve said turnstile arms; and a motor for operating said third disk.

21. An accumulator for turnstiles, comprising a storing member; means for moving said storing member progressively a unit; a discharge member movable in the same direction as said storing member; means to move said discharge member progressively a unit; control means interposed between said storing and discharge members normally in inoperative position and arranged to be disposed in operative posij-,

1 prising a storing disk provlded with ratchet tion by relative movement of said discharge and control members one or more units.

22. An accumulator for turnstiles, com prising a storing member; means for ad vancing said storing member progressivel by units; a movable discharge member means for advancing said discharge member progressively by units; an abutment member on said discharge member; a second abutment member on said storing member; and means controlling the operation of the turnstiles or the like operated by engagement of said abutment members.

23. An accumulator for turnstiles, comprising a storing member; means for advancing said storing member progressively by units; a movable discharge member: means for advancing said discharge member progressively by units; an abutment member fixed to said storing member; an abutment member movably secured to said discharge member; and a control switch operated by said abutment members.

24. An accumulator for turnstiles, comprising a storing disk; tently advancing said disk; a discharge disk; means for intermittently advancing said discharge disk; an abutment arm secured to said storing disk; a lever pivotally mounted on said discharge disk, and arranged to be moved by said abutment arm; and an electrical make and break device controlled by said lever.

25. An accumulator for turnstiles, comprising a storing disk provided with ratchet teeth; a pawl engaged therewith; a discharge disk provided with escapement teeth; an anchor engaged with said discharge disk; a motor spring secured to said dis charge disk and to said storing disk; an abutment arm secured to said storing disk; a lever pivotally mounted on said discharge disk, said lever forming a blade of a switch; abutting means interposed between said lever and said abutment arm; and a jaw for said blade mounted on said discharge disk.

26. An accumulator for turnstiles, comprising a shaft; a storing disk provided with ratchet teeth-mounted on said shaft; a pawl engaged with said storing disk; a discharge disk provided with escapement teeth rota vtably mounted on said shaft; an anchor engaged with said discharge disk; a spiral spring secured at one end to said discharge disk and at the other to said storing disk; an abutment arm secured to said storing disk; a lever pivotally mounted on said discharge disk; said lever forming a blade of a switch; an abutting member pivotally mounted on said shaft and disposed to be engaged by said abutment arm and to engage said lever; and a jaw for said blade mounted on said discharge disk.

27. An accumulator for turnstiles, comteeth; a pawl engaged therewith; a discharge disk provided with escapement teeth; an anchor engaged with said discharge dlsk; a spiral spring secured at one end to sa d discharge disk and at the other end to said storing disk; an abutment arm secured. to

saidstoring disk; a lever pivotally mounted onsaid d scharge dlsk, said lever forming a blade of a switch; abutting means interposed between said lever'and said abutment arm; a jaw for said blade mountedon said discharge disk; collecting rings mounted on said discharge disk and brushes engaged with said collecting rings.

28. The combination of an accumulator, comprising a storing member; means for advancing-said storing member progressively by units; a movable dischargemember; means for advancing said discharge member progressively by units; an abutment member on said discharge member; a second abutment member on said storing member; control means operated by said abutment members; a gate comprising a locking mechanism operatively connected to said control means; an accumulator controlmechanism operatively connected to said gate and to said means for advancing said discharge member to move the latter upon opening of said gate. 7 I

' 29. The combination of an accumulator, comprising a storing member; means for advancing said storing member progressively by units; a movable discharge member; means for advancing said discharge member progressively by units; an abutment member secured to said storing member;

an abutment member movably secured to,

said discharge member; a switch operated by said abutment members; an electrical circuit controlled by said switch including a 'motorvdevice; a gate, comprising a lock ingmechanism operated by said motor, an accumulator control mechanism operatively connected to said gate and to said means for advancing said discharge member to move the'latter upon opening ofsaid gate.

30. The combination of an accumulator, comprising a storing member; means for advancing said storing member progressively by units; a movable discharge member;

means'for advancing said discharge member progressively by units; an abutment member secured to said storing member; an abutment member movably secured' to said ('lisclmrge member; a switch operated by said abutment members; an electrical circuit con trolled 'by said. switch including a motor device; a gate, comprising a locking mechauisnroperatedby said motor; an electrical switch opeii'ate'dby said gale; an electrical circuit controlled by said last named switch and including a motor device, said last named motor device connected to said means for advan-cingsaid discharge member to control movementof the latter uponiopening of the gate.

"31. The combination of an (accumulator, co'mprismg astoring disk; means for intermittentlyadvanclng saidv disk; a discharge operatively connected to the last named solenoid. V V V 32. The COIllblIliltlOILOf. an accumulator,

comprising a storing. disk provided, with ratchet teeth; a pawl engaged therewith; a discharge disk provided with escapement teeth; an anchor engaged with said escapementteeth; a spiral spring secured at one end to said storing disk andat the other end to said discharge "disk; ail-abutment a-rm secured tosaidstoring. disk; a-lever pivotally mounted on said discharge disk; saidjlever forming a blade of a switch; abutting means interposed between said lever'and said abutment arm a aw'for 'said blade mounted on said dischargedisk; collecting rings mount ed on said dischargedisk; brushes engaged with said collecting rings; an electrical circuit connected to-said brushes and including a solenoid; a gate, comprising a locking mechanism, said locking mechanism operatively connected to said solenoid; an accumulator controlswitch; an electrical circuit connected to said accumulator control switchand inclu'd-inga solenoid, said solenoid operatively connected to said anchor.

33. The combination of an accumulator,

comprising a storing member; advancingneans for Isaid storing member to 'move the latter vp-rog-ressively by units; .amovable discharge -member; advancing means for said discharge member to move the latter progressively by units; an abut-ment member on said discharge member; a second'abut ment member 'on said storing member; a

power control means operated by said abutment member; agate comprising tw-o independently rotatable turnstile arms; means to automatically securethe leading to the following arm during movement through a --predetermined angle; means to i move the leadi-ng armto a position asiollowing arm after -movement through'said angleymeans to lock .said arms against movement; release means to unlock said arms; mechanism for operatingsaid release means; mechanism for operating the advancing means rfOI' said discharge member; a power transmission circuit including said mechanism; a power control means in said transmission circuit operated by said turnstile arms at the completion of a revolution; and a branch power transmission circuit including the first named control means and said first named mechanism.

34-. The combination of an accumulator, comprising a storing member; advancing means for said storing member to move the latter progressively by units; a movable discharge member; advancing means for said discharge member to move the latter progressively by units; an abutment member on said discharge member; asecond abutment member on said storing member; an electrical switch operated by said abutment members: a gate comprising two independently rotatable turnstile arms; means to automatically secure the leading to the following arm during movement through a predetermined angle; means to move the lead ing arm to a position as following arm after movement through said angle; means to lock said arms against movement; release means to unlock said arms; a solenoid for operating said release means; a solenoid for operating the advancing means for said discharge member: an electric circuit including said solenoid; a switch in said circuit; means operated by said turnstile arms at the completion of a revolution for closing said switch; and a branch electric circuit includ ing the first named solenoid and said first named switch.

35. The combination of an accumulator, comprising a storing member; advancing means for said storing member to move the latter progressively by units; a movable discharge member; advancing means for said discharge member to move the latter progressively by units; an abutment member on said discharge member; a second abutment member on said storing member; a power control means operated by said abutment members: a gate comprising two independently rotatable turnstile arms; means to automatically secure the leading to the following arm during movement through a predetermined angle; a motor mechanism to move the leading arm to a position as following arm after movement through said angle; means to lock said arms against movement; release means to unlock said arms; mechanism for operating said release means; mechanism for operating the advancing means for said discharge member; a power transmission circuit including said mechanism; a power control means in said transmission circuit operated by said turnstile arms at the completion of a revolution; a branch power transmission circuit including the first named control means and said first named mechanism; and a second branch power transmission circuit including said motor mechanism and said second named control means.

36. The combination of an accumulator, comprising a storing member; advancing means for said storing member to move the latter progressively by units; a movable discharge member; advancing means for said discharge member to move the latter progressively by units; an abutment member on said discharge member; a second abutment member on said storing member; an electrical switch operated by said abutment members: a gate comprising two independently rotatable turnstile arms; means to automatically secure the leading to the following arm during movement through a predetermined angle; a motor mechanism to move the leading arm to a position as following arm after movement through said angle; means to lock said arms against movement; release means to unlock said arms; a solenoid for operating said release means; a solenoid for operating the advancing means for said discharge member; an electrical circuit including said solenoid; a switch in said circuit operated by said turnstile arms at the completion of a revolution; a branch electric circuit including the first named switch and said first named solenoid; and a second branch circuit including said motor mechanism and said second named switch.

37. The combination of an accumulator, comprising a storing member; advancing means for said storing member to move the latter progressively by units; a movable dis charge member; advancing means for said discharge member to move the latter progressively by units; an abutment member on said discharge member; a second abutment member on said storing member; a power control means operated by said abutment member: a gate comprising a support; a turnstile supporting arm mounted thereon to swing horizontally; a turnstile mechanism mounted thereon comprising two independently rotatable turnstile arms; means to automatically secure the leading to the following arm during movement through a predetermined angle; means to move the leading arm to a position as following arm after movement through said angle; means to lock said arms against movement; release means to unlock said arms; mechanism for operating said release means; mechanism for operating the advancing means for said discharge member; a power transmission circuit including said mechanism; a power control means in said transmission circuit operated by said turnstile arms at the completion of a revolution; a branch power transmission circuit including the first named control means and said first named mechanism; detent engaging means on said arms; a pivoted member disposed adjacent said arms; means connected to said member and operated by swinging of said supporting arm; a detent mounted on said pivoted member and normally disposed out of operative engagement with said detent engaging means; meansto move said detent into operative position upon movement of said pivoted member and thereby move the following arm into a position parallel to said supporting arm upon swinging the latter at right angles to itself. 7

In witness that We claim the foregolng We have hereunto subscribed our names this 17th day of November, 1915.

ROBERT M; CAMPBELL. LAWRENCE s. CAMPBELL.

Copies of this patent may be obtained for five cents each, by addressing the VGommissioner of Patents,

' Washington, D. G. 

